I just had to restore a backup and when I tried to, I discovered that there was nothing in the directory specified in my The Bat! options. Instead, I found TWO autobackup files that were both reasonably up to date in different locations.

I have had the same problem and also had corrupt backups when I went to restore. I use a 3rd part backup software that backs up the entire data directory to another drive and keeps changes for x number of days. You could do the same thing with a ZIP / RAR program